Seunghoon Lee

Ph.D. Student (Purdue Bio: Profile)
Department of Computer Science
Purdue University

Curriculum Vitae: CV.pdf

About

I'm a Ph.D. student in the department of Computer Science at Purdue University. My research interest lies in cryptography and theoretical problems using probability theory, graph theory, and combinatorics. In particular, I'm drawn to password hashing using data-independent memory-hard functions and its applications, along with quantum information theory. I've been fortunate to be advised by Prof. Jeremiah Blocki since Spring 2019. Prior to joining Purdue I completed my M.Sc in the department of Mathematical Sciences at Seoul National University and B.Sc at POSTECH.

Publications and Preprints

On the Security of Proofs of Sequential Work in a Post-Quantum World. with Jeremiah Blocki and Samson Zhou. [abstract][pdf]
On the Multi-User Security of Short Schnorr Signatures. with Jeremiah Blocki. [abstract][pdf]
Approximating Cumulative Pebbling Cost is Unique Games Hard. with Jeremiah Blocki and Samson Zhou. ITCS 2020 [abstract][pdf]
Data-Independent Memory Hard Functions: New Attacks and Stronger Constructions. with Jeremiah Blocki, Ben Harsha, Siteng Kang, Lu Xing, and Samson Zhou. CRYPTO 2019 [abstract][pdf]
A Short Note on Improved Logic Circuits in a Hexagonal Minesweeper. [abstract][pdf]

News

2020

January 12: I am presenting a poster, "Approximating Cumulative Pebbling Cost is Unique Games Hard", at ITCS 2020, in Seattle, WA.
January 12: I am giving a short talk, "Approximating Cumulative Pebbling Cost is Unique Games Hard", at ITCS 2020, in Seattle, WA.

2019

November 21: I am presenting a poster, "Approximating Cumulative Pebbling Cost is Unique Games Hard", at a Weekly Lab Meeting.
November 6: I am giving a talk, "Approximating Cumulative Pebbling Cost is Unique Games Hard", at a Purdue Crypto Reading Group.
October 10: I am giving a talk, "On the Multi-User Security of Short Schnorr Signatures", at a Weekly Lab Meeting.
June 21: I am giving a talk, "Approximating Cumulative Pebbling Cost is Unique Games Hard", at a Weekly Lab Meeting.
April 13: I am presenting a poster, "On the Security of Short Schnorr Signatures", at Midwest Security Workshop 7, in Chicago, IL.
April 9: I am presenting a poster, "On the Security of Short Schnorr Signatures", at CERIAS Symposium 2019, in West Lafayette, IN.

Professional Services

I have been an external reviewer for: CCS 2019, NDSS 2020, CT-RSA 2020, ITC 2020, CRYPTO 2020, and TCC 2020.

Teaching Activities

At Purdue University

[Fall 2018] Graduate TA for CS 51500 (Numerical Linear Algebra) with Prof. David Gleich. (course webpage)
[Spring 2018] Graduate TA for CS 25100 (Data Structures and Algorithms) with Prof. Daniel G. Aliaga and Prof. Gustavo Rodriguez-Rivera. (course webpage)
[Fall 2017] Graduate TA for CS 25100 (Data Structures and Algorithms) with Prof. Mikhail Atallah and Prof. Xavier Tricoche.

At Seoul National University

[Fall/Spring 2013] Research Assistant for Research and Education Program with Sejong Science High School.
[Fall 2013] Graduate TA for 033.002 (Calculus 2) and 300.204 (Differential Equations).
[Spring 2013] Graduate TA for 033.001 (Calculus 1) and 300.204 (Differential Equations).
[Fall 2012] Graduate TA for 033.004 (Honor Calculus and Practice 2).
[Spring 2012] Graduate TA for 046.001 (Mathematics in Civilization).
[Fall 2011] Graduate TA for 046.001 (Mathematics in Civilization).
[Spring 2011] Graduate TA for 046.001 (Mathematics in Civilization).
[Fall 2010] Graduate TA for 033.002 (Calculus 2).

Selected Grants and Awards

[2019-] Graduate Research Assistantship, Purdue University
[2017-2018] Graduate Teaching Assistantship, Purdue University
[2012] Outstanding Teaching Assistant Award, Seoul National University
[2010-2013] Brain Korea 21 Scholarship, National Research Foundation of Korea
[2005-2009] Presidential Science Scholarship, Korea Student Aid Foundation

Contact

You may reach me at: lee2856@purdue.edu